OICC Press Geoconservation Research 2588-7343 4 1 2021 06 01 The Exceptional Fossil Record of the Sierra Norte de Sevilla UNESCO Global Geopark. The Early Cambrian of the Constantina-San Nicolás del Puerto area (Seville Province, Spain) 10.30486/gcr.2021.1912341.1046 EN Eduardo Mayoral Alfaro Department of Earth Sciences, University of Huelva, Av. Fuerzas Armadas, s/n, 21071 Huelva. Spain AND  CCTH - Science and Technology Research Centre, University of Huelva, Av. Fuerzas Armadas s/n, 21071 Huelva, Spain Eladio Liñán Department of Earth Sciences -IUCA. University of Zaragoza, 50009 Zaragoza, Spain https://orcid.org/0000-0003-1916-1077 José Antonio Gámez Vintaned Department of Geosciences, Faculty of Sciences & Information Technology, Universiti Teknologi Petronas (UTP), 32610 Bandar Seri Iskandar (Perak), Malaysia https://orcid.org/0000-0002-6604-4415 Rodolfo Gozalo Department of Botany and Geology, University of València, 46100 Burjassot, Spain https://orcid.org/0000-0001-7985-9843 María Eugenia Dies Álvarez Department of Specific Didactics-IUCA, University of Zaragoza, 50009-Zaragoza, Spain https://orcid.org/0000-0002-6594-3021 Ana Santos CCTH - Science and Technology Research Centre, University of Huelva, Avda. Fuerzas Armadas, s/n, E-21071 Huelva, Spain Luis Collantes Centro de Geociências, Universidade de Coimbra, Rua Sílvio Lima, 3030-790 Coimbra, Portugal https://orcid.org/0000-0001-9571-4433 Alberto Gil Toja Natural Park Sierra Norte de Sevilla – UNESCO Global Geopark, Spain Journal Article 2021 06 01 Early Cambrian fossils sites of two Natural Monuments of the Sierra Norte de Sevilla Geopark are highlighted. The first of these shows archaeocyath and stromatolite bioconstructions at the Cerro del Hierro site, one of the most complete and best exposed in the European Cambrian record. The other exceptional setting is the Constantina site, which preserves about 90 discoid structures, which have been interpreted as ancient jellyfish. This site is one of the oldest and best-preserved soft-bodied biotas in the Cambrian record worldwide. Cerro del Hierro also has industrial heritage through its important mining history, which, together with its paleontological value, provides a series of routes that have made it the most visited tourist and educational site in the Geopark. Although the Constantine site is not yet ready to receive visitors, both sites have been proposed as International Geosites and therefore enjoy the maximum Spanish legal protection.